open-nomad/ui/app/mixins/with-watchers.js
Michael Lange 738efdfb04 Fix a bug where with-watchers wasn't bubbling the willTransition event
The impact was the application error was no longer being nulled out,
causing the application error to continue to be shown after
transitioning.

This never happened in apps since it's not possible to transition away
from the error screen.
2018-11-07 16:08:26 -08:00

42 lines
1,017 B
JavaScript

import Mixin from '@ember/object/mixin';
import { computed } from '@ember/object';
import { assert } from '@ember/debug';
import WithVisibilityDetection from './with-route-visibility-detection';
export default Mixin.create(WithVisibilityDetection, {
watchers: computed(() => []),
cancelAllWatchers() {
this.get('watchers').forEach(watcher => {
assert('Watchers must be Ember Concurrency Tasks.', !!watcher.cancelAll);
watcher.cancelAll();
});
},
startWatchers() {
assert('startWatchers needs to be overridden in the Route', false);
},
setupController() {
this.startWatchers(...arguments);
return this._super(...arguments);
},
visibilityHandler() {
if (document.hidden) {
this.cancelAllWatchers();
} else {
this.startWatchers(this.controller, this.controller.get('model'));
}
},
actions: {
willTransition() {
this.cancelAllWatchers();
// Bubble the action up to the application route
return true;
},
},
});